I know that Paralelni Polis is somehow related to bitcoin coffee.
The world's first cafe, which completely refused to accept fiat currencies. Here you can drink coffee, but you will have to pay only crypto!
If someone from the visitors doesn't know about Bitcoin, cafe staff ready to help and talk about how it works. At the same time, there is installed bitcoin-ATM for the exchange of traditional currencies for bitcoins, and there is also a printer for creating paper wallets!
In fact, they are advertising crypto currencies...smart guys
))